OSG 2832601 Spiral Point Tap Plug, 3 Flutes
Spiral Point Tap, Thread Size 1/2 In.-20, UNF, Overall Length 3 11/32 in, HSS-E, Black Oxide, Right Hand, Thread Length 7/8 in, 75 Percent Thread Drill Size 11.40 mm, Thread Limit H3, Class of Fit 6H, Number of Flutes 3